No. Marijuana is one of the few drugs that isnt. Type in vasoconstrictor into wikipedia to look up the ones that are. Marijuana actually does the opposite and increase blood â¦ flow and expand the arteries.
Some of the comorbid or associated medical symptoms for Mouth numbness may include these symptoms: 1  Digestive symptoms. 2  Face symptoms. 3  Head symptoms.  Mouth 1  symptoms. Nerve symptoms. 2  Pain. Sensations.  more associated symptoms...Â».
Best Answer: Numbness, long jaw, fuzzy tongue feeling typically lasts for 2-6 hours depending on how much Lidocaine or Carbocaine(mepivacaine) whichever they shot you up with. You should start feeling a difference soon but continue to sip on water only. Take care!! Source(s): experienced dental asst.